| 用于液化天然气冷量回收的冷脉管发动机 |
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| 引用本文： | 朱绍伟. 用于液化天然气冷量回收的冷脉管发动机[J]. 化工学报, 2015, 66(Z2): 413-417. DOI: 10.11949/j.issn.0438-1157.20150822 |
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| 作者姓名： | 朱绍伟 |
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| 作者单位： | 同济大学机械与能源工程学院, 上海 201804 |
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| 基金项目： | 国家自然科学基金项目(51476117)。 |
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| 摘 要： | 脉管制冷机是一种主要应用于卫星上冷却探测器的低温制冷机。具有室温推移活塞的脉管制冷机是一种可逆脉管制冷机。其逆向循环为冷脉管发动机,是一种新的可用于液化天然气冷量发电的装置。用数值分析的方法阐述了其工作原理,分析了最佳扫气容积比与脉管长度的关系,讨论了扫气容积对功率的调节。
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| 关 键 词： | 天然气 热力学过程 数值分析 冷脉管发动机 脉管制冷机 |
| 收稿时间： | 2015-06-04 |
| 修稿时间： | 2015-06-12 |
A cold pulse tube engine for recovering LNG cold energy |
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| ZHU Shaowei. A cold pulse tube engine for recovering LNG cold energy[J]. Journal of Chemical Industry and Engineering(China), 2015, 66(Z2): 413-417. DOI: 10.11949/j.issn.0438-1157.20150822 |
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| Authors: | ZHU Shaowei |
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| Affiliation: | School of Mechanical Engineering, Tongji University, Shanghai 201804, China |
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| Abstract: | A pulse tube refrigerator is manly for cooling sensors in satellite.It is also important for ground using.A displacer pulse tube is one of the revisable pulse tube refrigerators which can operate at cold engine model to generate power by using the cooling energy of cooling sources such as LNG.A nodal analysis numerical model is used for the simulation of the cold pulse tube engine with the cooling energy of LNG.The basic working mechanism of the cold pulse tube engine is explained.It is shown that the optimum swept volume ratio of displacer over expander changes with the length of the pulse tube,the power of the cold pulse tube engine can be adjusted by the swept volume of the expander. |
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| Keywords: | natural gas thermodynamics process numerical analysis cold pulse tube engine pulse tube refrigerator |
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